[Congenital hereditary disorder of antithrombin 3 formation].
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Adolescent↗
Biomedical subjects
G Blaskó
Publications and source records attributed to G Blaskó.
Inhibitory effect of "late" type fibrinogen degradation products (FDP) upon the ethanol gelation of plasma.
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Animals↗
Platelet functions in different types of congenital antithrombin-III deficiencies.
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Antithrombins↗
Studies in the thymelaeaceae, V. 2'-Hydroxyflavone from Daphnopsis sellowiana: isolation and synthesis.
From the leaves of Daphnopsis sellowiana (Thymelaeceae), 2'-hydroxyflavone [1], a rare natural product, has been isolated and characterized through its spectroscopic properties. Confirmation of the structure was achieved through total synthesis, which also afforded adequate material for complete 13C-nmr analysis.
Flavonoids↗
1H-nmr analysis of herbimycins and dihydro-herbimycins.
Herbimycin A [1] and herbimycin C [3] and their dihydro-derivatives 5 and 6, respectively, have been obtained from the cell broth of Streptomyces hygroscopicus, and the assignment of their 1H-nmr has been completed. Strong cytotoxic activity of antibiotics 1, 3, 5, and 6 against the P-388 and KB lymphocytic leukemia test systems has been demonstrated.
Animals↗
Spectroscopic and biological investigation of nimbolide and 28-deoxonimbolide from Azadirachta indica.
The reisolation of nimbolide [1] from Azadirachta indica of Tanzanian origin and the isolation and structure elucidation of a new limonoid, 28-deoxonimbolide [2], from the same plant source are reported. For the first time, unambiguous 1H- and 13C-nmr assignments of compounds 1 and 2 are presented, as well as their in vitro cytotoxic activity against human tumor cell lines.
Antineoplastic Agents, Phytogenic↗
13C-nmr spectral assignment and evaluation of the cytotoxic potential of rotenone.
Unambiguous 13C-nmr assignments for the widely used pesticide rotenone have been made through the judicious use of APT, CSCM 1D, and selective INEPT spectroscopy. Also, in order to more fully characterize the biologic potential of rotenone, studies were performed with cultured cells. Intense, but nonspecific, activity was observed in the P-388 lymphocytic leukemia, KB carcinoma of the nasopharynx, and a number of human cancer cell types: e.g., HT-1080 human fibrosarcoma, LU-1 lung cancer, COL-2 colon cancer, MEL-2 melanoma, and BC-1 breast cancer cell lines in vitro.
Animals↗
Monocytes express tissue factor in young patients with cerebral ischemia.
Activation of blood coagulation and fibrinolysis has previously been detected in stroke patients. It is unknown, however, what factors contribute to the acceleration of coagulation reactions, especially in cases where no obvious predisposing factors exist. We therefore postulated and tested the hypothesis that in such patients monocytes may trigger the pathway leading to thrombosis by expressing tissue factor (TF). TF antigen was determined in 48 patients and 40 controls by flow cytometry using an indirect immunofluorescent technique. TF antigen expression was significantly increased on monocytes in young stroke patients in both the acute (p < 0.01) and chronic (p < 0.05) phases of the disease. The TF antigen also possessed functional activity, quantitated by a one-stage clotting assay. TF expression on monocytes was not associated with an elevation in C-reactive protein values. In both acute and chronic phases, blood coagulation activation markers, e.g. the thrombin-antithrombin complex and F1 + 2 fragments, were significantly elevated. However, in the acute phase D-dimer levels were similar to those in controls and were only elevated in the chronic phase of the disease (p < 0.05). In conclusion, in cerebral ischemia TF expression on monocytes suggests enhanced activation of blood coagulation and subsequent fibrinolysis.
Adolescent↗